• Ductile Iron Pipe of China ISO2531 DN500-1DN1000 System 1
  • Ductile Iron Pipe of China ISO2531 DN500-1DN1000 System 2
Ductile Iron Pipe of China ISO2531 DN500-1DN1000

Ductile Iron Pipe of China ISO2531 DN500-1DN1000

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Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
10000 m.t.
Supply Capability:
200000 m.t./month

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1.Ductile Iron Pipe Description :
1) Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179,  outside Zinc 
spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.
2) Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633
3) we can do third party inspection according to customer's request.

2.Main Features of the Ductile Iron Pipe:
•High yield strength
•High tensile Strength
•High corrosion resistance
•Pressure Resistence
1. Material: Ductile iron grade 500-7/ 450-10 in accordance with ISO1083
2. Standard: ISO 2531, EN545, EN598, ANSI, AWWA
3. Certificate: ISO9001, ISO14001, SGS, NSF, WRAS
4. Test: In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test
5. Length: 6m or cut into 5.6m, 5.7m, 5.8m
6. Internal Lining: Cement, conform to ISO4179

3.Ductile Iron Pipe Images:

4.Ductile Iron Pipe  Specification:
Standard: API SPEC 5L  44th eidtion,ASTM A252-98(2007)
Grade:  A53 Grades A/B, ASTM A106 Grades B/C,ASTM A179
             AWWA, C200, ASTM A139, ASTM A120,   API 5L Grade B    
             X42, X52, X56, X60, X65, X70, X80, X100
Weld Alternatives:  LSAW
OD size range: 6.4~44.5mm
Wall thickness:  406.4~1422mm
Note: Other grade can also be provided after consulting. Special design are available
for coal slurry conveyance LSAW line tube -- Service


5.FAQ:
We have organized several common questions for our clients,may help you sincerely:
1.Q: Why would you choose ductile iron pipe rather than other pipe materials?
 A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile 
iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to 
installation and commissioning.
2.Q:Why can you guarantee the inner of pipes can’t be corroded?
 A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable 
to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.

Q: What is cast iron pipe?
Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on. Among them, the flexible iron pipes rubber sealing ring; flange interface cast iron pipe flange fixed in the rubber pad, the flange gasket sealing; rigid interface cast iron pipe socket is large, straight pipe is inserted, sealed with cement, this technology has been basically eliminated.
Q: What is the expected deflection range for ductile iron pipes?
The expected deflection range for ductile iron pipes typically falls within the range of 2-5% of the pipe's diameter.
Q: Can ductile iron pipe be used for fire protection systems?
Yes, ductile iron pipe can be used for fire protection systems. Ductile iron pipe is known for its strength and durability, making it suitable for various applications, including fire protection systems. Its high tensile strength and resistance to cracking and breaking make it a reliable choice for transporting water and other fire suppression agents. Additionally, ductile iron pipe has excellent corrosion resistance properties, ensuring long-term performance and reliability in fire protection systems. Overall, ductile iron pipe is a suitable and commonly used material for fire protection systems due to its strength, durability, and corrosion resistance.
Q: Are ductile iron pipes suitable for pressure sewer systems?
Yes, ductile iron pipes are suitable for pressure sewer systems. Ductile iron pipes have been widely used in various applications, including pressure sewer systems, due to their high strength and durability. These pipes are able to withstand high pressure and provide a reliable and long-lasting solution for transporting sewage under pressure. Ductile iron pipes also have excellent corrosion resistance, which is crucial in sewer systems where they are exposed to various chemicals and contaminants. They are resistant to both internal and external corrosion, ensuring that the pipes remain intact and functional over time. Furthermore, ductile iron pipes have a smooth internal surface, which helps to minimize friction and improve the flow capacity of the sewer system. This ensures that the pipes can handle the required flow rates and prevent any blockages or backups. In addition to their strength and corrosion resistance, ductile iron pipes are also known for their ease of installation. They can be easily cut and joined using a variety of methods, making them a convenient choice for pressure sewer systems. Overall, ductile iron pipes are a suitable and reliable choice for pressure sewer systems due to their high strength, corrosion resistance, smooth internal surface, and ease of installation.
Q: What is the expected deflection of ductile iron pipes under load?
The deflection of ductile iron pipes under load can vary depending on several factors, including diameter, wall thickness, material properties, and the magnitude and distribution of the load applied. Ductile iron pipes generally possess a high resistance to deflection due to their inherent strength and durability. They are designed to withstand substantial loads and are commonly used in applications where high pressure and heavy loads are anticipated. Engineers typically employ structural analysis techniques such as finite element analysis or beam theory calculations to ascertain the expected deflection. These methods consider the specific geometry and material properties of the ductile iron pipe to predict its behavior under load. In practice, ductile iron pipes are designed with a maximum allowable deflection, which is usually specified by industry standards or local regulations. This maximum allowable deflection ensures the pipe's structural integrity and functionality. It is worth noting that the expected deflection of ductile iron pipes can also be influenced by external factors like soil conditions, installation methods, and temperature fluctuations. Therefore, it is crucial to employ proper installation techniques and adhere to industry guidelines to ensure the pipes perform as expected and meet the required deflection limits.
Q: What is the expected surge pressure rating of ductile iron pipes?
The expected surge pressure rating of ductile iron pipes can vary depending on various factors such as the diameter and thickness of the pipe, the type of joint used, and the specific manufacturer's specifications. However, ductile iron pipes are generally designed to withstand surge pressures between 150% to 200% of their working pressure rating. This means that if a ductile iron pipe has a working pressure rating of, for example, 250 psi, it can typically handle surge pressures of up to 375 psi to 500 psi. It is important to consult the manufacturer's specifications and guidelines for accurate surge pressure ratings specific to the ductile iron pipes being used.
Q: What kind of valves are commonly used in ductile iron pipes?
You ask the ductile cast iron valves used on no special, because this interface in connection with the valve on the pipe flange is basically, as long as the flange of the valve should be can be used in milling pipe.
Q: What is the maximum allowable deflection for ductile iron pipes?
The maximum allowable deflection for ductile iron pipes is typically specified by industry standards and guidelines, such as those provided by the American Water Works Association (AWWA) and the Ductile Iron Pipe Research Association (DIPRA). These standards specify the maximum allowable deflection as a percentage of the pipe's outside diameter. According to AWWA C150/A21.50 and DIPRA's Technical Bulletin No. 10, the maximum allowable deflection for ductile iron pipes can vary depending on factors such as pipe size, wall thickness, and soil conditions. However, a common rule of thumb is that the maximum allowable deflection should not exceed 3% of the pipe's outside diameter. It is important to note that exceeding the maximum allowable deflection can result in potential structural issues and reduced performance of the ductile iron pipe. Therefore, it is crucial to adhere to the industry standards and guidelines to ensure the proper installation and functioning of ductile iron pipes.
Q: How are ductile iron pipes different from cast iron pipes?
Ductile iron pipes are different from cast iron pipes in terms of their composition and properties. Ductile iron pipes are made from a type of cast iron that has been treated with magnesium to improve its strength and flexibility. This makes ductile iron pipes more durable, impact-resistant, and less prone to cracking or breaking compared to traditional cast iron pipes. Additionally, ductile iron pipes have a higher tensile strength, allowing them to withstand higher internal and external pressures. In summary, ductile iron pipes are a more modern and advanced version of cast iron pipes, offering improved performance and longevity.
Q: Can ductile iron pipe be used for underground applications?
Yes, ductile iron pipe can be used for underground applications.

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